T400 vs Quadro NVS 420

Place in the ranking	1371	515
Place by popularity	not in top-100	not in top-100
Power efficiency	0.55	21.66
Architecture	Tesla (2006−2010)	Turing (2018−2022)
GPU code name	G98	TU117
Market segment	Workstation	Workstation
Release date	20 January 2009 (16 years ago)	6 May 2021 (4 years ago)
Launch price (MSRP)	$131.43	no data

Cost-effectiveness evaluation

The higher the performance-to-price ratio, the better. We use the manufacturer's recommended prices for comparison.

no data

Performance to price scatter graph

Detailed specifications

General parameters such as number of shaders, GPU core base clock and boost clock speeds, manufacturing process, texturing and calculation speed. Note that power consumption of some graphics cards can well exceed their nominal TDP, especially when overclocked.

Pipelines / CUDA cores	8 ×2	384
Core clock speed	550 MHz	420 MHz
Boost clock speed	no data	1425 MHz
Number of transistors	210 million	4,700 million
Manufacturing process technology	65 nm	12 nm
Power consumption (TDP)	40 Watt	30 Watt
Texture fill rate	4.400 ×2	34.20
Floating-point processing power	0.0224 TFLOPS ×2	1.094 TFLOPS
ROPs	4 ×2	16
TMUs	8 ×2	24

Form factor & compatibility

Information on compatibility with other computer components. Useful when choosing a future computer configuration or upgrading an existing one. For desktop graphics cards it's interface and bus (motherboard compatibility), additional power connectors (power supply compatibility).

Interface	PCIe 1.0 x16	PCIe 3.0 x16
Width	1-slot	1-slot
Supplementary power connectors	None	None

VRAM capacity and type

Parameters of VRAM installed: its type, size, bus, clock and resulting bandwidth. Integrated GPUs have no dedicated video RAM and use a shared part of system RAM.

Memory type	GDDR3	GDDR6
Maximum RAM amount	256 MB ×2	2 GB
Memory bus width	64 Bit ×2	64 Bit
Memory clock speed	700 MHz	1250 MHz
Memory bandwidth	11.2 GB/s ×2	80 GB/s

Connectivity and outputs

Types and number of video connectors present on the reviewed GPUs. As a rule, data in this section is precise only for desktop reference ones (so-called Founders Edition for NVIDIA chips). OEM manufacturers may change the number and type of output ports, while for notebook cards availability of certain video outputs ports depends on the laptop model rather than on the card itself.

Display Connectors

No outputs

3x mini-DisplayPort

API and SDK compatibility

List of supported 3D and general-purpose computing APIs, including their specific versions.

DirectX	11.1 (10_0)	12 (12_1)
Shader Model	4.0	6.6
OpenGL	3.3	4.6
OpenCL	1.1	3.0
Vulkan	N/A	1.2
CUDA	1.1	7.5

Synthetic benchmark performance

Non-gaming benchmark results comparison. The combined score is measured on a 0-100 point scale.

Combined synthetic benchmark score

This is our combined benchmark score.

NVS 420 0.28

T400 8.34
+2879%

Passmark

This is the most ubiquitous GPU benchmark. It gives the graphics card a thorough evaluation under various types of load, providing four separate benchmarks for Direct3D versions 9, 10, 11 and 12 (the last being done in 4K resolution if possible), and few more tests engaging DirectCompute capabilities.

NVS 420 120

T400 3603
+2903%

Gaming performance

Let's see how good the compared graphics cards are for gaming. Particular gaming benchmark results are measured in FPS.

Pros & cons summary

Performance score	0.28	8.34
Recency	20 January 2009	6 May 2021
Maximum RAM amount	256 MB	2 GB
Chip lithography	65 nm	12 nm
Power consumption (TDP)	40 Watt	30 Watt

T400 has a 2878.6% higher aggregate performance score, an age advantage of 12 years, a 700% higher maximum VRAM amount, a 441.7% more advanced lithography process, and 33.3% lower power consumption.

The T400 is our recommended choice as it beats the Quadro NVS 420 in performance tests.